Description
The Daikin-McQuay 5009498 Thermistor Assembly tracks temperature at a designated point in the refrigerant or air circuit and feeds a continuous resistance-based signal to the control board, which uses that data to adjust capacity, fan speed, or operational mode in actual time, giving the controller a precise and immediate picture of thermal conditions without relying on fixed setpoints or timed sequences. Outdoor units, cassette-type indoor heads, and ducted split units in various HVAC systems accept this structure at predetermined sensing locations through clip or bracket mounts, and thermal insulator output at every stage of operation keeps the system modulating efficiently.
